KR101734458B1 - Stereopsis display device and driving method thereof - Google Patents

Stereopsis display device and driving method thereof Download PDF

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Publication number
KR101734458B1
KR101734458B1 KR1020100109835A KR20100109835A KR101734458B1 KR 101734458 B1 KR101734458 B1 KR 101734458B1 KR 1020100109835 A KR1020100109835 A KR 1020100109835A KR 20100109835 A KR20100109835 A KR 20100109835A KR 101734458 B1 KR101734458 B1 KR 101734458B1
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South Korea
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eye image
image display
display period
left eye
right eye
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KR1020100109835A
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Korean (ko)
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KR20120048282A (en
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서해관
김태진
김도엽
구본석
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삼성디스플레이 주식회사
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Priority to KR1020100109835A priority Critical patent/KR101734458B1/en
Priority to US13/137,921 priority patent/US9100644B2/en
Publication of KR20120048282A publication Critical patent/KR20120048282A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Control Of El Displays (AREA)
  • Electromagnetism (AREA)

Abstract

The present invention relates to a stereoscopic image display apparatus and a driving method thereof, and more particularly, to a stereoscopic image display apparatus including a scan driver for transmitting a plurality of scan signals to a plurality of scan lines, A light emitting control driver for transmitting a plurality of light emission control signals to a plurality of light emission control lines, a corresponding scan line among the plurality of scan lines, a corresponding data line among the plurality of data lines, A plurality of pixels connected to corresponding emission control lines of the emission control lines of the plurality of pixels, respectively, wherein each of the plurality of pixels includes a display unit receiving a corresponding data signal when a corresponding scan signal is transmitted, The driving unit, and the light emission control driver, and displays the left eye image display period, the right eye image display And a black image display period, and supplies the generated image data signal to the data driver, wherein the left eye glass and the right eye glass of the shutter glasses are opened and closed between the left eye image display period and the right eye image display period, And a black image corresponding to a black data signal is displayed during the shutter stabilization period.

Description

TECHNICAL FIELD [0001] The present invention relates to a stereoscopic image display device,

The present invention relates to a stereoscopic image display device and a driving method thereof, and more particularly, to a driving method in which a stereoscopic image signal is driven so as to display a high-definition bright three-dimensional stereoscopic image in a display device implementing a stereoscopic image by a field- .

Recently, various flat panel display devices capable of reducing the weight and volume, which are disadvantages of cathode ray tubes (CRTs), have been developed. Examples of the flat panel apparatus include a liquid crystal display (LCD), a field emission display (FED), a plasma display panel (PDP), and an organic light emitting diode display .

Among the flat panel display devices, an organic light emitting display device displays an image using an organic light emitting diode (OLED) that generates light by recombination of electrons and holes, and has a fast response speed and low power consumption And has been attracting attention because of its excellent luminous efficiency, luminance and viewing angle.

In general, a plurality of pixels emitting light in an organic light emitting display includes an organic light emitting diode, and the organic light emitting diode generates light of a predetermined luminance corresponding to a data current supplied from the pixel circuit.

Digital driving, which is one of the gradation representation methods of the organic light emitting display, adjusts the ON time of the organic light emitting diode of the pixel. In the case of an organic light emitting display device according to the digital driving method, one frame is divided into a plurality of subframes, and the light emission period of each subframe is appropriately set for gray scale display. The pixels emit light during a sub-frame selected according to a video signal for gradation representation among a plurality of sub-frames constituting one frame.

On the other hand, in order to display a stereoscopic image, at least two images corresponding to at least two different viewpoints have to be displayed within one frame display period. Generally, the stereoscopic image display apparatus displays a left eye image and a right eye image corresponding to both eyes of a person, that is, a left eye and a right eye, within one frame period.

That is, a left eye image display period for dividing a period of one frame into a left eye image interval and a right eye image interval and displaying a left eye image in a left eye image interval, and a right eye image display period for displaying a right eye image in the right eye image interval .

According to the field sequential driving method, since the scanning method of the display panel is sequentially scanned from the top to the bottom, the left eye image and the right eye image can be crosstalked. In order to prevent this, each of the left eye image period and the right eye image display period may include a black image display period in which the entire organic light emitting display is displayed as a black image within the left eye image section and the right eye image section.

Nevertheless, there is still a problem that a crosstalk phenomenon caused by a mixture of a left eye image and a right eye image may still exist. In addition, since the brightness is lost due to the black image to be inserted in order to improve the crosstalk phenomenon, it is difficult to express the gradation according to the original image data signal.

Therefore, in realizing a three-dimensional stereoscopic image, it is necessary to study a clear stereoscopic image display apparatus of a high image quality and a driving method thereof, in which the crosstalk phenomenon is completely improved and luminance lost due to insertion of a black image is compensated.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of driving a stereoscopic image display device in which a crosstalk phenomenon is eliminated in a display device using a field sequential driving method, There is a purpose.

Further, the present invention improves the driving method of the conventional stereoscopic image display device to realize a clear 3D image quality in which the mixture of the left eye image and the right eye image is completely removed, Of the display device.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical subjects which are not mentioned can be clearly understood by those skilled in the art from the description of the present invention .

According to an aspect of the present invention, there is provided a stereoscopic image display device including a scan driver for transmitting a plurality of scan signals to a plurality of scan lines; A data driver for transmitting a plurality of data signals to a plurality of data lines; A light emission control driver for transmitting a plurality of light emission control signals to a plurality of light emission control lines; A plurality of pixels each connected to a corresponding one of the plurality of scan lines, a corresponding data line among the plurality of data lines, and a corresponding one of the plurality of light emission control lines, A display unit that receives a corresponding data signal when a scan signal is transmitted; And a control circuit for controlling the scan driver, the data driver, and the emission control driver to generate a video data signal corresponding to each of the left eye image display period, the right eye image display period, and the black image display period for one frame, And a controller. A black image display period in which a black image corresponding to a black data signal is displayed between the left eye image display period and the right eye image display period, and a shutter stabilization period in which the left eye glass of the shutter glasses and the right eye glass are opened and closed are overlapped.

An image corresponding to the left eye image data signal for displaying the left eye image or a right eye image data signal for displaying the right eye image is not displayed in the shutter stabilization period.

The shutter stabilization period is a period in which the light emission of the display unit is turned off during the black image display period and the left eye image display period or the right eye image display period in the stereoscopic image display apparatus.

The shutter stabilization period is a period during which the left eye glass and the right eye glass of the shutter glasses open and close intersect with each other, and the opening speed of the shutter glasses is slower than the shutter speed.

At this time, the period during which the light emission of the display unit is turned off may coincide with the time corresponding to the speed difference in which the left eye glass and the right eye glass of the shutter glasses cross each other and are opened and closed. However, this characteristic is only one embodiment, and the light-off period of the display unit does not coincide with the time according to the opening / closing speed difference.

In one embodiment of the present invention, the frequency of the plurality of scan signals transmitted to the display unit during the left eye image display period and the right eye image display period may be higher than the subframe frequency of the left eye image display period or the right eye image display period.

In particular, the frequencies of the plurality of scan signals transmitted to the display unit during the left eye image display period and the right eye image display period may be 1.25 times to 2 times the subframe frequency of the left eye image display period or the right eye image display period. However, the present invention is not necessarily limited to these embodiments.

In one embodiment of the present invention, the black image display period is started at the end of the left eye image display period and the right eye image display period, respectively.

Further, in one embodiment of the present invention, the light emission control driver controls the light emission control driver to emit light during a period of time equal to the time corresponding to the speed difference in which the left eye glass and the right eye glass of the shutter glasses cross each other during the left eye image display period or the right eye image display period And generate and transmit a light emission control signal for interrupting the light emission of the corresponding pixel among the plurality of pixels.

At this time, the duty ratio of the plurality of light emission control signals may be adjusted according to the shutter reaction speed of the shutter glasses.

Further, the plurality of light emission control signals may be transmitted to the gate-on voltage level in synchronization with the completion of opening and closing of the left eye glass and right eye glass of the shutter glasses.

In one embodiment of the present invention, the scan driver may transmit a plurality of scan signals having a frequency higher than a subframe frequency of the left eye image display period or the right eye image display period.

The frequency of the plurality of scan signals may be 1.25 times to 2 times the subframe frequency of the left eye image display period or the right eye image display period, but is not limited thereto.

According to an aspect of the present invention, there is provided a method of driving a stereoscopic image display device including a plurality of pixels, wherein a frame time is divided into a left eye image display period, a right eye image display period, And a sub-frame of a black image display period inserted between the right-eye image display period and the right-eye image display period, respectively. Specifically, the driving method according to the present invention generates a left eye image data signal, a right eye image data signal, and a black image data signal corresponding to each of the left eye image display period, the right eye image display period, and the black image display period, Sequentially; Emitting each of the plurality of pixels according to the left eye image data signal; Displaying each of the plurality of pixels as a black image according to the black image data signal; Emitting each of the plurality of pixels according to the right-eye image data signal; And displaying each of the plurality of pixels as a black image according to the black image data signal. At this time, in the step of emitting according to the left eye image data signal and the step of emitting according to the right eye image data signal, the light emission of each of the plurality of pixels is turned off for an initial predetermined period.

In the driving method of the present invention, the period including the predetermined period and some of the previous black image display periods may be a shutter stabilization period in which the left eye glass and the right eye glass of the shutter glasses are opened and closed.

During the shutter stabilization period, the left eye image data signal for displaying the left eye image or the right eye image data signal for displaying the right eye image is not displayed. That is, images according to the left eye image data signal and the right eye image data signal are not mixed.

Further, the shutter stabilization period is a period during which the opening and closing of the left eye glass and right eye glass of the shutter glasses cross each other, and the opening speed of the shutter glasses is slower than the shutter speed.

In the driving method of the present invention, the predetermined period may coincide with a time corresponding to a speed difference in which the left eye glass and the right eye glass of the shutter glasses cross each other and are opened and closed.

The scan speed for each of the plurality of pixels during the left eye image display period and the right eye image display period may be faster than the subframe frequency of the left eye image display period or the right eye image display period and is preferably, The scanning speed may be a speed of 1.25 times to 2 times the subframe frequency of the left eye image display period or the right eye image display period.

Each of the plurality of pixels may be turned off in response to a light emission control signal for controlling a switching operation of the light emission control transistor for controlling the light emission of the organic light emitting diode included in each of the plurality of pixels during the predetermined period. At this time, the duty ratio of the light emission control signal can be adjusted according to the shutter reaction speed of the shutter glasses, and is synchronized with the opening and closing of the left eyeglass and the right eyeglass of the shutter glasses.

According to the present invention, a crosstalk phenomenon caused by a mixture of a left eye image and a right eye image in a display device for driving a stereoscopic image is completely eliminated, thereby realizing a clear three-dimensional stereoscopic image.

In addition, according to the present invention, it is possible to compensate for the luminance loss caused in the process of solving the crosstalk, thereby providing a sharp and high-quality stereoscopic image.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a frame configuration diagram and driving waveform diagram showing a method of driving a stereoscopic image display apparatus according to a related art; FIG.
2 is a block diagram of a stereoscopic image display apparatus according to an embodiment of the present invention.
3 is a circuit diagram showing a configuration of a pixel circuit of the stereoscopic image display apparatus of Fig.
4 is a frame configuration diagram and driving waveform diagram illustrating a method of driving a stereoscopic image display apparatus according to an exemplary embodiment of the present invention.
5 is a view for comparing black images displayed according to the conventional technique and the driving method of the stereoscopic image display apparatus of the present invention.
6 is a frame configuration diagram and driving waveform diagram illustrating a method of driving a stereoscopic image display apparatus according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In addition, in the various embodiments, components having the same configuration are represented by the same reference symbols in the first embodiment, and only the configuration other than the first embodiment will be described in the other embodiments.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

1 is a frame configuration diagram and a driving waveform diagram showing a driving method of a conventional stereoscopic image display apparatus.

And more particularly, to a method of realizing a three-dimensional stereoscopic image realized during one frame in a stereoscopic image display device according to a field progressive driving method.

Referring to FIG. 1, one of the 3D driving methods of the related art can be driven at 60 Hz, and each subframe can be driven at 240 Hz.

That is, one frame is divided into a left eye image section and a right eye image section in a 3D driving using a sequential driving type display panel, and each of the two subframes is divided into a corresponding image display period and a black image display period.

The left eye image section includes a left eye image display period LI in which a left eye image is displayed and a black image display period LB in which a black image is displayed.

The right eye image section includes a right eye image display period (RI) in which a right eye image is displayed and a black image display period (RB) in which a black image is displayed.

Thus, each of the left eye image display period LI, the black image display period LB, the right eye image display period RI, and the black image display period RB is driven at 240 Hz according to the embodiment of FIG. However, this is only an embodiment and is not limited to the driving frequency and it is possible to drive at a low speed.

In order to realize a three-dimensional stereoscopic image in a three-dimensional stereoscopic image system, a stereoscopic image shutter glasses which recognize the left-eye image and the right-eye image respectively corresponding to a display panel displaying a left-eye image and a right-eye image are required.

The shutter glasses open the left eye and block the right eye in response to the shutter synchronization signal SS in the left eye image section and open the right eye in response to the shutter synchronization signal SS in the right eye image section and simultaneously block the left eye .

Therefore, the left eye image is displayed in the left eye image display period LI and the black image is displayed in the black image display period LB of the left eye image interval T1 in which the left eye is opened, And black images are sequentially recognized.

The right eye image is displayed in the right eye image display period RI and the black image is displayed in the black image display period RB in the right eye image section T2 with the right eye opened. Black images are sequentially recognized.

At this time, the left eye image display period LI, the right eye image display period RI, and the respective black image display periods LB and RB are started by the vertical synchronization signal VS.

That is, the display panel of the stereoscopic image display device is scanned by a plurality of scan signals sequentially activating the plurality of pixel lines of the display panel in response to the vertical synchronization signal VS.

A scanning signal corresponding to each of the plurality of scanning lines of the display panel is transmitted. A plurality of pixels connected to the scanning line to which the scanning signal is transmitted are displayed in a predetermined gray scale corresponding to the left eye image data signal, the right eye image data signal, or the black data signal.

1, each of the left eye image display period LI, the right eye image display period RI, and the black image display periods LB and RB constitutes one frame, so that a stereoscopic image frame The stereoscopic image display apparatus operates at 240 Hz. In the conventional stereoscopic image display apparatus according to another embodiment, the left eye image display period LI and the right eye image display period RI are driven at a low speed of about 120 Hz.

The left eye image and the right eye image are recognized and the black image is displayed and recognized because the left eye image and the right eye image are mixed at the time of opening the shutter glasses to recognize the left eye image and the right eye image, In order to prevent the occurrence of this problem. 120 Hz, the upper portion of the right eye image can be displayed in the time zone in which the left eye image is almost the same as the lower portion display, and even if a black image is inserted between the left eye image and the right eye image display period, the crosstalk phenomenon is further intensified .

In the method of 3D driving by inserting a black image as in the embodiment of FIG. 1, at the time when the left eye image section T1 in which the left eye part of the shutter eyeglasses is opened and the right eye image section T2 in which the right eye part of the shutter eyeglasses is opened The left eye image and the right eye image may be mixed and crosstalk may still occur.

In other words, although a subframe displaying a black image is included between a subframe in which a left eye image is displayed and a subframe in which a right eye image is displayed at the end of the left eye image section T1, Are almost in time. Therefore, considering the reaction speed of the shutter glasses, the right eye image is recognized by the left eye while the eyeglass shutter of the left eye looking at the left eye image is closed, and a crosstalk phenomenon is felt.

The present invention further improves the driving method of the stereoscopic image display device in order to completely eliminate the crosstalk phenomenon which may still occur while using the 3D driving method for improving the crosstalk phenomenon.

The driving method of the stereoscopic image display apparatus according to the present invention will be described in detail with reference to FIG. 4 to FIG.

First, a block diagram of a stereoscopic image display apparatus according to the present invention is shown in FIG.

2, a display device according to an exemplary embodiment of the present invention includes a plurality of pixels PX connected to scan lines S1 to Sn, data lines DA1 to DAm, and emission control lines EM1 to EMn, A scan driver 20 for generating and supplying a scan signal to the scan lines S1 to Sn and a scan driver 20 for supplying a video data signal according to a video signal input from the outside to the data lines DA1 to DAm A light emission control driver 60 for generating and supplying a light emission control signal to the data driver 30 and the light emission control lines EM1 to EMn, and a scan driver 20, a data driver 30, and a light emission control driver 60 (Not shown).

The control unit 50 generates a data driving control signal DCS, a scan driving control signal SCS, and a light emission driving control signal ECS in response to externally supplied synchronization signals. The data driving control signal DCS generated by the control unit 50 is supplied to the data driving unit 30 and the scan driving control signal SCS is supplied to the scan driving unit 20, And is supplied to the control driver 60.

The control unit 50 converts the video signal IS supplied from the outside into a video data signal DATA and supplies the converted video data signal to the data driver 30.

The stereoscopic image display apparatus according to an embodiment of the present invention sequentially displays a left eye image and a right eye image corresponding to both eyes to display a stereoscopic image. In order for each of the left eye image and the right eye image to be transmitted to each eye, a separate shutter eyeglass is required.

That is, the user should wear glasses for allowing the image to be projected only in the left eye during the period in which the left eye image is displayed, and for projecting the image only in the right eye during the period in which the right eye image is displayed.

In the stereoscopic image display apparatus, the image data signal DATA supplied from the control unit 50 to the data driver 30 includes a left eye image data signal and a right eye image data signal.

Specifically, the left eye image data signal is an image data signal that is transmitted to the left eye of the user through the left eye (left eye glass) of the shutter eyeglasses to be recognized.

The right eye image data signal is an image data signal that is transmitted to the right eye of the user through the right eye (right eye glass) of the shutter glasses and recognized.

The data driver 30 supplies a plurality of video data signals to a plurality of data lines DA1 to DAm in a subframe corresponding to the left eye image display period and the right eye image display period of a plurality of subframes included in one frame. Specifically, the data driver 30 supplies a plurality of left eye image data signals and a plurality of right eye image data signals, which are received according to a data driving control signal transmitted from the controller 50, to a plurality of data lines.

Also, the controller 50 generates and transmits a video data signal as a black video data signal for a predetermined period between the left-eye video display period and the right-eye video display period. The predetermined period is a black image display period. The black video data signal is a video data signal that does not cause a pixel to emit light, that is, does not supply a current to the organic light emitting diode.

The data driver 30 transmits a plurality of black data signals to the plurality of data lines in accordance with the data driving control signal DCS.

Specifically, the data driver 30 transmits a plurality of video data signals to a plurality of pixels 40 through a plurality of data lines in synchronization with a timing at which a scanning signal having a gate-on voltage corresponding to each sub-frame is supplied do. The gate-on voltage means a level at which the switching transistor is turned on so that the image data signal is transmitted to the gate electrode of the driving transistor for transmitting the driving current to the organic light emitting diode included in the pixel. This will be described later in detail with reference to the pixel structure of FIG.

At this time, a plurality of left eye image data signals are transmitted through the plurality of data lines in the left eye image display period, a plurality of right eye image data signals are transmitted in the right eye image display period, and a plurality of black data signals .

The scan driver 20 supplies a scan signal having a gate-on voltage to a corresponding one of the plurality of scan lines S1 to Sn in synchronization with the start timing of each sub-frame. A plurality of pixels 40 connected to the scan line supplied with the scan signal having the gate-on voltage among the plurality of scan lines S1 to Sn is selected and activated. The plurality of pixels 40 selected by the scanning signal are supplied with either the left eye image data signal, the right eye image data signal, or the black data signal from the plurality of data lines DA1 to DAm.

The frequency of the scan signal is controlled by the scan control signal SCS. The scan driver 20 supplies a plurality of scan signals in units of subframes in accordance with the scan control signal SCS and transmits each of the plurality of scan signals to the corresponding scan lines. Specifically, the scan control signal SCS includes a vertical synchronizing signal (see FIG. 4) for discriminating each of a plurality of sub-frames and a horizontal synchronizing signal for determining the time of delivery of each of the plurality of scanning signals.

The light emission control driver 60 controls the plurality of pixels included in the display unit 10 to emit light in accordance with the image data signal corresponding to the light emission drive control signal ECS transmitted from the control unit 50. [ That is, the light emission control driver 60 generates and transmits the light emission control signals to the light emission control lines EM1 to EMn connected to the plurality of pixels corresponding to the light emission control drive signal ECS, The driving of the organic light emitting diodes included in each pixel is controlled correspondingly. When the emission control signal is applied to each of the plurality of pixels at the gate-on voltage level, the organic light emitting diode emits light with a driving current corresponding to the image data signal to display an image. When the emission control signal is applied at the gate off voltage level, the current supplied to the organic light emitting diode is cut off and the organic light emitting diode does not emit light. The stereoscopic image display device may not include the light emission control driver according to the pixel structure.

The first power ELVDD and the second power ELVSS supply two driving voltages required for the plurality of pixels 40 to operate. The two driving voltages include a first driving voltage of a high level supplied to the first power supply ELVDD and a second driving voltage of a low level supplied from the second power supply ELVSS.

Next, the driving of each of the plurality of pixels of the stereoscopic image display apparatus will be described with reference to the circuit diagram of Fig. 3 showing the configuration of the pixel circuit of the stereoscopic image display apparatus of Fig.

3 shows a circuit of a corresponding pixel 40 among a plurality of pixels in the stereoscopic image display apparatus of FIG.

3, the pixel 40 includes a switching transistor Ml, a driving transistor M2, a light emitting control transistor M3, a storage capacitor Cst, and an organic light emitting diode (OLED). 3 is one embodiment of a pixel driving circuit, it is not necessarily limited to such a configuration, and may be applied variously as long as it is a structure of a pixel circuit known in the related art.

The pixel 40 according to the embodiment of FIG. 3 specifically includes a gate electrode connected to a corresponding one of the plurality of scanning lines, a source electrode connected to a corresponding one of the plurality of data lines, one end of the storage capacitor Cst, And a drain electrode connected to a node to which a gate electrode of the transistor M2 is connected.

The pixel 40 also includes a driving transistor M3 including a gate electrode connected to the drain electrode of the switching transistor M1, a source electrode connected to the first power source ELVDD, and a drain electrode connected to the source electrode of the emission control transistor M3 M2.

The pixel 40 includes a gate electrode connected to the emission control line EM, a source electrode connected to the drain electrode of the driving transistor M2, and a drain electrode connected to the anode electrode of the organic light emitting diode OLED M3).

The storage capacitor Cst is connected at one end to the contact point of the drain electrode of the switching transistor Ml and the gate electrode of the driving transistor M2 and at the other end to the source electrode of the driving transistor M2, ) During a predetermined sub-frame period in which an image is displayed.

The anode electrode of the organic light emitting diode OLED is connected to the drain electrode of the emission control transistor M3, and the cathode electrode thereof is connected to the second power ELVSS.

When the switching transistor Ml is turned on in accordance with the scanning signal transmitted through the corresponding scanning line Sn, the image data signal transmitted through the switching transistor Ml turned on is applied to the gate electrode of the driving transistor M2 . Therefore, the voltage difference between the gate electrode and the source electrode of the driving transistor M2 is the first driving voltage difference between the video data signal and the first power source ELVDD, and the driving current flows to the driving transistor M2 according to the voltage difference.

The driving current is transmitted to the organic light emitting diode (OLED), and the organic light emitting diode (OLED) emits light according to the transmitted driving current.

When a plurality of scan signals having gate-on voltage levels are supplied to corresponding scan lines among the plurality of scan lines S1 to Sn, a plurality of switching transistors M1 connected to the corresponding scan lines are turned on. Each of the plurality of data lines DA1 to DAm receives one of a left eye data signal, a right eye data signal, and a black data signal in synchronization with a timing at which a scanning signal having a gate-on voltage is supplied.

One of the left eye image data signal, the right eye image data signal, and the black data signal, which is transmitted to the plurality of data lines DA1 to DAm through each of the plurality of switching transistors M1 turned on, The organic light emitting diodes OLED of the plurality of pixels 40 emit light or are not emitted during the corresponding sub frame period according to the received image data signal.

At this time, even if any one of the image data signals of the left eye image data signal, the right eye image data signal, and the black data signal is transmitted, the drive current is supplied to the organic light emitting diode according to the driving of the light emission control transistor M3. That is, when the emission control signal transmitted through the emission control line EM connected to the emission control transistor M3 is delivered to the gate-on voltage level and turned on, the organic light emitting diode emits light with a driving current corresponding to the video data signal And displays an image. If the emission control signal is transmitted to the gate off voltage level and turns off the emission control transistor M3, the organic light emitting diode will not emit light with a driving current corresponding to the video data signal.

FIG. 4 illustrates a method of driving a stereoscopic image display apparatus according to an embodiment of the present invention for reliably eliminating a crosstalk phenomenon generated in the driving process of the conventional stereoscopic image display apparatus of FIG. According to the embodiment of FIG. 4, one frame of the stereoscopic image display device is composed of four subframes, and the frame frequency is 60 Hz.

The black image display period must be located between the left eye image display period and the right eye image display period. Therefore, the left eye image display period and the right eye image display period according to the embodiment of the present invention are set to be shorter than half of one frame period.

The left eye image section and the right eye image section according to the embodiment of the present invention shown in FIG. 4 include a left eye image display period LI, a black image display period LB, a right eye image display period RI, Respectively.

One frame includes a period in which the left eye image display period LI and the black image display period LB are combined and a right eye image display period RI and a black image display period RB. Therefore, the subframe frequency is 240 Hz.

The driving period of the shutter glasses includes a left eye image section, a right eye image section, and shutter stabilization sections P2 and P4.

The shutter stabilization periods P2 and P4 overlap the corresponding black image display periods LB and RB. The driving frequency of the left eye image interval and the right eye image interval including the shutter stabilization interval may be 120 Hz.

4, the stereoscopic image display apparatus of the present invention includes a left eye image display period LI, a black image display period LB, a right eye image display period RI, and a black image display period (RB) are respectively started. According to the embodiment, since these display periods constitute one frame, the frequency of the vertical synchronization signal VS may be 240 Hz.

Specifically, when a plurality of scan signals for sequentially activating a plurality of pixel lines of the display panel corresponding to the vertical synchronizing signal VS are transmitted to each of the plurality of scan lines of the display panel of the stereoscopic image display device, Emits light according to the transmitted image data signal, and is expressed in a gray scale according to the image data signal.

In the embodiment of the present invention, the speed at which each of the plurality of scanning signals transmitted corresponding to the vertical synchronization signal VS is transmitted to the corresponding scanning line is increased. That is, the frequency of the horizontal synchronizing signal increases.

The frequency increase degree of the horizontal synchronizing signal is determined according to the shutter stabilization periods P2 and P4. As the shutter stabilization periods P2 and P4 are set longer, the frequency of the horizontal synchronization signal increases. That is, the speed at which a plurality of scanning signals are transmitted to the corresponding scanning lines increases.

Since the shutter stabilization periods P2 and P4 vary depending on the performance of the shutter glasses and the like, the shutter stabilization periods P2 and P4 can be changed according to the user's setting. The user inputs the shutter stabilization periods P2 and P4 to the stereoscopic image display apparatus and the stereoscopic image display apparatus can determine the scan signal transmission speed corresponding to the shutter stabilization periods P2 and P4, that is, the horizontal synchronization signal frequency.

Therefore, the scanning speeds of the scanning signals for supplying the left-eye image data, the black image data, and the right-eye image data to the respective pixels of the display panel corresponding to the activated vertical synchronizing signal VS become equal to each other. Therefore, it can be seen that the angle of the subframe in which the left eye image data, the black image data, and the right eye image data are transmitted and displayed on the display panel becomes higher than the subframe angle displayed in the driving method according to the related art when the horizontal direction is referred to .

The black image display period LB, the right eye image display period RI, and the black image display period RB transmitted to the right eye in the left eye image display period LI, the left eye image LB, The scanning signal is transmitted in synchronization with the vertical synchronizing signal VS to be transmitted, and the transfer speed of the scanning signal is all the same. At this time, the scanning speed of the display panel is transmitted at a frequency higher than four times the frequency of one frame. Preferably at a high frequency of more than 4 times and not more than 8 times of one frame frequency.

Specifically, in the embodiment of FIG. 4, the display panel can be scanned at a frequency higher than 240 Hz, preferably 300 Hz to 480 Hz.

Then, as shown in FIG. 4, the left eye image display period indicated by a dotted line is changed to the left eye image display period LI indicated by a solid line according to the conventional driving method. According to the driving method according to the embodiment of the present invention, a time gap is formed between the left eye image display period (LI) and the right eye image display period (RI), so that while the left eye image is transmitted to the left eye of the user, It is not recognized in the left eye. The time interval becomes the shutter stabilization period P2, P4 in FIG. That is, since there is no overlapping portion between the lower portion of the left eye image recognized in the user's left eye and the upper portion of the right eye image recognized in the user's right eye due to the shutter stabilization period, a crosstalk phenomenon caused by a mixture of the left eye image and the right eye image Can be completely removed.

The shutter stabilization period P2 of the shutter glasses synchronized with the end of the left eye image display period LI in the stereoscopic image display apparatus and the shutter stabilization interval P2 of the shutter glasses synchronized with the end of the right eye image display period RI, (P4) overlaps with the black image insertion period in the stereoscopic image display apparatus. Therefore, in the left-on section P1 in which the left eye image is displayed, the right eye image is not interrupted at all, thereby preventing crosstalk.

In the present invention, the shutter synchronizing signal SS for controlling the shutter glasses to open and close the shutter glasses is transmitted to the high level in the section P1 of the left eye image section to open the left eye and block the right eye. In the right eye image section P3, So as to open the right eye and block the left eye. The shutter synchronizing signal SS may be transmitted to the shutter glasses through a communication unit which is generated by the control unit 50 and communicates with the shutter glasses. However, the present invention is not limited thereto. At this time, the shutter synchronization signal SS may correspond to the period of the left eye image section or the right eye image section.

The shutter stabilization period P2 provided between the P1 section, which is the left eye image section in which the left eye is opened, and the P3 section, which is the right eye image section, in which the right eye is opened is a state in which the shutter of the left eye (or the eye of the left eye) Since the image recognized in the left or right eye of the shutter glasses opened during this interval is a black image, the left and right eye images can be completely separated without being mixed. Similarly, in the shutter stabilization period P4 provided between the P3 section in which the right eye is opened and the section in which the left eye is opened (not shown), the right front shutter is closed while the left front shutter is opened.

The possibility of mixing the left eye image and the right eye image during the shutter stabilization period P2 and P4 may be completely blocked.

It is possible to separate the left and right images by inserting a black image display period between the left eye image display period LI and the right eye image display period RI in the image display apparatus according to the present invention, The scan speed of the display panel is controlled to block overlap of the left and right images generated in the process of turning on / off the liquid crystal of the shutter glass.

The stabilization period P2 and P4 of the shutter glasses are not particularly limited, but may be 0.5 to 2.5 ms.

The driving method of the stereoscopic image display apparatus according to the present invention as compared with the driving method of the conventional stereoscopic image display apparatus is characterized in that a plurality of scanning signals are transmitted to the corresponding scanning lines . Therefore, since the shutter stabilization period of the shutter glasses can be provided so as to overlap with the black image display period inserted between the end point of the left eye image display period and the start point of the right eye image display period, the insertion amount of the black image is reduced, The luminance influence can be relatively relieved when the image is displayed. A specific comparison can be seen from the configuration diagram of Fig.

That is, FIG. 5 is a view for comparing a period during which the black image is inserted while the image according to the image data signal is displayed during the 3D driving according to the prior art and the embodiment of the present invention. 5 (a) shows a part of a 3D driving process according to the related art, and FIG. 5 (b) shows a part of a 3D driving process according to an embodiment of the present invention.

In FIG. 5, the dotted lines indicate the same sub-frames IM1 and IM2 in which the left eye image or the right eye image is displayed in each of the plurality of activated pixels as the entire display panel is sequentially scanned. The dotted line display portion is set to the same subframe period in order to compare the conventional technique and the present invention.

At this time, the insertion amount of the black image inserted in the previous sub-frame (BL1, BL2) period is displayed during the sub-frames IM1, IM2 of the same image display. Is significantly larger than the black image insertion amount in (b) showing the 3D driving according to the embodiment of FIG.

it can be seen that the luminance is lost by about 50% due to the black image inserted during the previous subframe in displaying the left eye image or the right eye image according to the 3D driving according to the prior art shown in FIG. In addition, considering that the brightness loss due to the glass transmittance of the shutter glasses occurs, it may be difficult to express the gradation according to the image data signal.

On the other hand, according to the 3D driving according to the embodiment of the present invention shown in (b), since the black image inserted in the previous sub-frame is relatively small during the same image display period, Less. Therefore, as can be seen from (b) of FIG. 3, in the 3D driving according to the embodiment of the present invention, luminance reduction is expected in the image display because the luminance reduction rate is small.

6 is a frame configuration diagram and a driving waveform diagram illustrating a method of driving a stereoscopic image display apparatus according to another embodiment of the present invention.

Referring to FIG. 6, a left eye image section in which a left eye image is implemented during one frame and a right eye image section in which a right eye image is implemented are included.

The left eye image section is a section in which the left eye shutter is opened in the shutter glasses, and the right eye image section is a section in which the right eye shutter is opened.

At this time, the left eye image section overlaps the left eye image display period LI in which the left eye image according to the left eye image data signal is displayed in the stereoscopic image display device and the black image display period LB in which the black image is displayed.

Also, the right eye image section overlaps the right eye image display period (RI) in which the right eye image according to the right eye image data signal is displayed in the stereoscopic image display device and the black image display period (RB) in which the black image is displayed.

Specifically, there is a period in which the opening and closing of the left eye glass shutter and the right eye glass shutter are crossed between the left eye image section and the right eye image section, which will be described later.

According to the embodiment of FIG. 6, a plurality of scan signals transmitted to a plurality of corresponding scan lines connected to a plurality of pixels of the display panel during a sub-frame displaying respective images corresponding to the vertical synchronization signal VS are transmitted at a high speed .

That is, the start time of each of the left eye image display period LI, the black image display period LB, the right eye image display period RI, and the black image display period RB is synchronized with the vertical synchronization signal VS, A plurality of scan signals transmitted to corresponding scan lines among a plurality of scan lines included in the display panel corresponding to the synchronization signal VS are transferred at a high speed. That is, the frequency of the horizontal synchronizing signal increases.

The frequencies of the plurality of scanning signals are higher than four times the frame driving frequency. That is, when the driving frequency of one frame is 60 Hz, the driving frequency of each of the left eye image display period LI, the black image display period LB, the right eye image display period RI, and the black image display period RB is 240 Hz And the plurality of scan signals have a frequency higher than 240 Hz. And may be transmitted to each of the plurality of scanning lines connected to the plurality of pixels of the display panel at 300 Hz to 480 Hz.

On the other hand, one frame may be composed of two subframes in which the left eye image and the right eye image are displayed. In this case, the driving frequency of one subframe may be twice the driving frequency of one frame. That is, in the above example, one subframe is driven at 120 Hz so that an image can be displayed at a relatively low speed. Even in such a case, the transfer speed of the plurality of scan signals transmitted to the plurality of scan lines connected to the plurality of pixels of the display panel, that is, the horizontal synchronizing signal frequency, must be higher than the subframe drive frequency so that the display of the left eye image and the right eye image are separated So that the crosstalk phenomenon does not occur.

When the stereoscopic image display apparatus according to an embodiment of the present invention is driven at low speed by two subframes, the vertical synchronization signal VS is delivered to the on-voltage level at the start time of the left eye image interval and the right eye image interval, The scanning operation of the panel is started.

According to the embodiment of FIG. 6, since a plurality of pixels included in the display panel are activated by a plurality of scanning signals transmitted at a high speed and are displayed in accordance with the image data signal, the left eye image and the right eye image are mixed and prevented from reaching both eyes So that the crosstalk phenomenon does not occur.

In addition, in the embodiment of FIG. 6, the emission duty is controlled in response to high-speed scan driving. 6, in the stereoscopic image display apparatus according to the present invention, a delay interval P20 is provided between the light emission periods of the image display period in which light is emitted according to the vertical synchronization signal VS, the left eye image data signal, or the right eye image data signal. To control the light emission duty.

The light emission duty is adjusted by controlling on / off driving of the light emission control signal according to the shutter reaction speed of the shutter glasses.

That is, the shutter glasses open and close the left and right eyes corresponding to the shutter synchronizing signal SS. The shutter reaction speed of the shutter glasses may vary, and the light emission driving of the display panel is controlled according to the shutter response speed.

6, the shutter synchronization signal SS transits from a low level to a high level at a time point t1 when the left eye image display period LI ends, and changes to a high level when the right eye image display period RI ends. Level to low level.

Opening and closing of the left eye glass shutter (LS) or right eye glass shutter (RS) is started in synchronization with the transition point of the shutter synchronizing signal (SS).

The left eye glass shutter LS changes from the high level to the low level at the transition time t1 of the shutter synchronizing signal SS and is interrupted for the period of P10. On the other hand, the right eye glass shutter RS is changed from the low level to the high level in synchronization with the transition timing t1 of the shutter synchronizing signal SS, and is opened for the period of P20 including the period of P10 to the time point t3. The transition speed of the right eye glass shutter RS, that is, the opening speed of the right eye glass shutter RS is slower than the transition speed of the left eye glass shutter LS, that is, the cutoff speed of the left eye glass shutter LS. The right eye part of the shutter glasses is opened during P10 and P20.

Therefore, since the left eye of the shutter glasses closes relatively faster than the right eye and the right eye of the shutter glasses opens relatively slowly, the time t2 at which the vertical synchronizing signal VS is transmitted to start the right eye image display period RI, There is provided a delay section in which the light is emitted according to the video data signal and is not emitted by the P20 section between the time point t3 when the right-eye image is displayed. This delay period may be set to a predetermined period and is not particularly limited. Preferably 0.5 to 2.5 ms.

The delay period P20 may be set for an initial predetermined period of time during which the left eye image or the right eye image is displayed.

During the delay period, the organic light emitting diodes (OLED) of each of the plurality of pixels 10 included in the display unit 10 emit no light corresponding to the emission control signal having the gate off voltage level. After the delay period P20 ends, And emits light with a drive current corresponding to the left eye or right eye image data signal corresponding to the light emission control signal having the on voltage level.

Due to the delay period P20, there is no fear that the lower left eye image and the upper right eye image are temporally mixed and recognized together. Therefore, the left eye image and the right eye image can be separated more completely, thereby preventing the crosstalk phenomenon.

Even in the case of low-speed 3D driving constituting one frame by two subframes in which the left eye image and the right eye image are emitted, immediately before the left eye image or the right eye image is displayed, that is, after the vertical synchronization signal VS is transmitted, The emission duty ratio of the light emission control signal is adjusted for a predetermined period during which the shutter or the right eye glass shutter is stabilized to set the emission off period so that the mixture of the left eye image and the right eye image can be completely prevented. In this embodiment, since the driving speed can be lowered, it is possible to provide a high-quality display device improved in terms of EMI, power consumption, and noise.

Although the present invention has been described in connection with the specific embodiments of the present invention, it is to be understood that the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. In addition, the materials of each component described in the specification can be easily selected and substituted for various materials known to those skilled in the art. Those skilled in the art will also appreciate that some of the components described herein can be omitted without degrading performance or adding components to improve performance. In addition, those skilled in the art may change the order of the method steps described herein depending on the process environment or equipment. Therefore, the scope of the present invention should be determined by the appended claims and equivalents thereof, not by the embodiments described.

10: Display section 20:
30: Data driver 40: Pixel
50: control unit 60: emission control driver

Claims (23)

A scan driver for transmitting a plurality of scan signals to a plurality of scan lines;
A data driver for transmitting a plurality of data signals to a plurality of data lines;
A light emission control driver for transmitting a plurality of light emission control signals to a plurality of light emission control lines;
A plurality of pixels each connected to a corresponding one of the plurality of scan lines, a corresponding data line among the plurality of data lines, and a corresponding one of the plurality of light emission control lines, A display unit that receives a corresponding data signal when a scan signal is transmitted; And
And controls the scan driver, the data driver, and the emission control driver to generate an image data signal corresponding to each of the left eye image display period, the right eye image display period, and the black image display period for one frame, And a controller,
A black image display period in which a black image according to a black data signal is displayed between the left eye image display period and a right eye image display period is overlapped with a shutter stabilization period in which the left eye glass of the shutter glasses and the right eye glass are opened and closed,
Wherein a predetermined delay period exists between a time point when the vertical synchronization signal is transmitted and a time point when the corresponding image is displayed. The method according to claim 1,
Wherein the left eye image data signal for displaying the left eye image or the image corresponding to the right eye image data signal for displaying the right eye image is not displayed in the shutter stabilization period. The method according to claim 1,
Wherein the shutter stabilization period is overlapped with a period during which the light emission of the display unit is turned off during the black image display period and the left eye image display period or the right eye image display period. The method of claim 3,
Wherein the shutter stabilization period is a period during which the opening and closing of the left eye glass and the right eye glass of the shutter glasses are completed by crossing each other and the opening speed of the shutter glasses is slower than the shutter speed. The method of claim 3,
Wherein a period during which the light emission of the display unit is turned off coincides with a time corresponding to a speed difference in which the left eye glass and the right eye glass of the shutter glasses cross each other and are opened and closed. The method according to claim 1,
Wherein the frequency of the plurality of scan signals transmitted to the display unit during the left eye image display period and the right eye image display period is higher than the subframe frequency of the left eye image display period or the right eye image display period. The method according to claim 1,
Wherein the frequency of the plurality of scan signals transmitted to the display unit during the left eye image display period and the right eye image display period is 1.25 times to 2 times the subframe frequency of the left eye image display period or the right eye image display period. . The method according to claim 1,
Wherein the black image display period starts at the end of the left eye image display period and the right eye image display period, respectively. The method according to claim 1,
Wherein the light emission control driver is configured to control the light emission control driver to emit light corresponding to one of the plurality of pixels of the plurality of pixels during a time corresponding to a speed difference in which the left eye glass and the right eye glass of the shutter glasses cross each other during the left eye image display period or the right eye image display period, And generates and transmits a light emission control signal for blocking light emission of the pixel. The method according to claim 1,
Wherein the duty ratio of the plurality of light emission control signals is adjusted in accordance with a shutter reaction speed of the shutter glasses. The method according to claim 1,
Wherein the plurality of light emission control signals are transmitted at a gate-on voltage level in synchronism with completion of opening and closing of the left eye glass and the right eye glass of the shutter glasses. The method according to claim 1,
Wherein the scan driver transmits a plurality of scan signals having a frequency higher than a subframe frequency of the left eye image display period or the right eye image display period. 13. The method of claim 12,
Wherein the frequency of the plurality of scanning signals is 1.25 times to 2 times the subframe frequency of the left eye image display period or the right eye image display period. A stereoscopic image display device including a plurality of pixels and including a subframe of a black image display period in which one frame time is inserted between a left eye image display period, a right eye image display period, and a left eye image display period and a right eye image display period, A method of driving an apparatus,
A left eye image data signal, a right eye image data signal, and a black image data signal corresponding to the left eye image display period, the right eye image display period, and the black image display period, respectively, and sequentially supplying the left eye image data signal, the right eye image data signal, and the black image data signal;
Emitting each of the plurality of pixels according to the left eye image data signal;
Displaying each of the plurality of pixels as a black image according to the black image data signal;
Emitting each of the plurality of pixels according to the right-eye image data signal; And
And displaying each of the plurality of pixels as a black image in accordance with the black image data signal,
Wherein the light emission of each of the plurality of pixels is turned off for a predetermined period of time in a step of emitting light in accordance with the left eye image data signal and a step of emitting light in accordance with the right eye image data signal, Wherein a predetermined delay period exists between a time when the corresponding image is displayed and a time when the corresponding image is displayed. 15. The method of claim 14,
Wherein the period including the predetermined period and some of the previous black image display periods is a shutter stabilization period in which the left eye glass and the right eye glass of the shutter glasses are opened and closed. 16. The method of claim 15,
Eye image data signal for displaying the left-eye image or the right-eye image data signal for displaying the right-eye image is not displayed in the shutter stabilization period. 16. The method of claim 15,
Wherein the shutter stabilization period is a period during which the opening and closing of the left eye glass and the right eye glass of the shutter glasses are completed by crossing each other and the opening speed of the shutter glasses is slower than the shutter speed. 15. The method of claim 14,
Wherein the predetermined period of time coincides with a time corresponding to a speed difference in which the left eye glass and the right eye glass of the shutter glasses cross each other and are opened and closed. 15. The method of claim 14,
Wherein the scan speed for each of the plurality of pixels during the left eye image display period and the right eye image display period is faster than the subframe frequency of the left eye image display period or the right eye image display period. 15. The method of claim 14,
Wherein the scanning speed for each of the plurality of pixels during the left eye image display period and the right eye image display period is 1.25 times to 2 times the subframe frequency of the left eye image display period or the right eye image display period. A method of driving a display device. 15. The method of claim 14,
Wherein each of the plurality of pixels is turned off in response to a light emission control signal for controlling a switching operation of the light emission control transistor for controlling light emission of the organic light emitting diode included in each of the plurality of pixels during the predetermined period A method of driving a stereoscopic image display apparatus. 22. The method of claim 21,
Wherein the duty ratio of the light emission control signal is adjusted according to a shutter reaction speed of the shutter glasses. 22. The method of claim 21,
Wherein the light emission control signal is synchronized with a time point at which the left eye glass and the right eye glass of the shutter glasses are opened and closed to intersect with each other to be transferred to the gate-on voltage level.
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Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105741780B (en) * 2011-12-09 2018-12-18 株式会社日本有机雷特显示器 Display unit and its driving method and electronic device
KR20130112245A (en) * 2012-04-03 2013-10-14 삼성디스플레이 주식회사 Stereoscopic image display device and driving method thereof
US20150062315A1 (en) * 2012-04-18 2015-03-05 The Regents Of The University Of California Simultaneous 2d and 3d images on a display
TW201441667A (en) * 2013-04-26 2014-11-01 Wintek Corp Method of displaying stereoscopic images and related display device
US10003789B2 (en) 2013-06-24 2018-06-19 The Regents Of The University Of California Practical two-frame 3D+2D TV
US20150085090A1 (en) * 2013-09-25 2015-03-26 Shenzhen China Star Optoelectronics Technology Co. Ltd. Three-dimensional display device and three-dimensional display method thereof
CN103595995B (en) * 2013-11-13 2015-09-09 京东方科技集团股份有限公司 A kind of processing method, Apparatus and system of shutter type three-dimensional image display
KR20150057588A (en) * 2013-11-20 2015-05-28 삼성디스플레이 주식회사 Organic light emitting display device and driving method thereof
KR102117889B1 (en) * 2013-12-11 2020-06-02 엘지디스플레이 주식회사 Pixel circuit of display device, organic light emitting display device and method for driving thereof
KR102214549B1 (en) 2014-03-03 2021-02-10 삼성디스플레이 주식회사 Organic light emitting display device and driving method thereof
CN105096822B (en) * 2015-07-02 2018-09-04 深圳市华星光电技术有限公司 A kind of 3D display system
KR102536161B1 (en) * 2016-03-31 2023-05-25 삼성디스플레이 주식회사 Scan driver and display apparatus having the same
CN108900828A (en) * 2018-08-29 2018-11-27 深圳市时代华影科技股份有限公司 3D display device, image display method, 3D glasses, control method and control system
CN109254414A (en) * 2018-10-31 2019-01-22 深圳市时代华影科技股份有限公司 Active 3D glasses and control method thereof, 3D display system and dual-purpose glasses
CN113012652B (en) * 2021-03-09 2022-11-08 Tcl华星光电技术有限公司 Backlight driving circuit and liquid crystal display device
CN113534488A (en) * 2021-07-15 2021-10-22 武汉华星光电技术有限公司 3D display system and display method thereof

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8169467B2 (en) * 2006-03-29 2012-05-01 Nvidia Corporation System, method, and computer program product for increasing an LCD display vertical blanking interval
KR101109152B1 (en) 2006-12-14 2012-02-24 삼성전자주식회사 Liquid crystal shutter glasses and method for controlling liquid crystal shutter
KR101309793B1 (en) 2007-01-12 2013-09-23 삼성전자주식회사 The image apparatus of processing stereography image and method thereof
US8659641B2 (en) * 2007-05-18 2014-02-25 3M Innovative Properties Company Stereoscopic 3D liquid crystal display apparatus with black data insertion
KR101362771B1 (en) * 2008-09-17 2014-02-14 삼성전자주식회사 Apparatus and method for displaying stereoscopic image
KR20100052278A (en) 2008-11-10 2010-05-19 삼성전자주식회사 Display system, display apparatus and control method thereof
KR100995065B1 (en) 2009-01-12 2010-11-18 삼성모바일디스플레이주식회사 Display device
KR101579733B1 (en) * 2009-01-28 2015-12-24 삼성전자주식회사 3 3 dimensional image diplay methode and device adopting the method
US20100238274A1 (en) * 2009-03-16 2010-09-23 Lg Electronics Inc. Method of displaying three-dimensional image data and an apparatus of processing three-dimensional image data
JP5702054B2 (en) * 2009-03-31 2015-04-15 ソニー株式会社 Display device and display method
JP5273478B2 (en) * 2009-07-07 2013-08-28 ソニー株式会社 Video display device and video display system
JP2011075745A (en) * 2009-09-30 2011-04-14 Sony Corp Image display viewing system, optical modulator, and image display device
KR20110054834A (en) * 2009-11-18 2011-05-25 엘지디스플레이 주식회사 Stereoscopic image display device and driving method thereof

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